CVE intelligence

CVE-2026-72489

Vulnerability intelligence

Published Aug 15, 2026Sources checked Oct 8, 2026

8.4HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-72489 and is rated High severity with a CVSS score of 8.4. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-72489?

In the Linux kernel, the following vulnerability has been resolved:

staging: nvec: fix use-after-free in nvec_rx_completed()

In nvec_rx_completed(), when an incomplete RX transfer is detected, nvec_msg_free() is called to return the message back to the pool by clearing its 'used' atomic flag. Immediately after this, the code accesses nvec->rx->data[0] to check the message type.

Since nvec_msg_free() marks the pool slot as available via atomic_set(), any concurrent or subsequent call to nvec_msg_alloc() could claim that same slot and overwrite its data[] array. Reading nvec->rx->data[0] after freeing the message is therefore a use-after-free.

Fix this by saving the message type byte before calling nvec_msg_free(), then using the saved value for the battery quirk check.

Source: NVD